One of my friend’s girlfriend actually made it up last summer with pretty much no training. And that was VERY shortly after she got altitude sickness on Mauna Kea (which is a little lower than Whitney). So you just never know. You might find that you end up doing better than you thought you would.
There are a couple of things you might consider doing if you can. One would be to try a hike with a decent amount of elevation gain at a significant altitude. Consider Mount Baldy by the Baldy Bowl, San Gorgonio by Vivian Creek, or San Jacinto by Marion Mountain. Any of these would be good last minute training hikes (relatively) close to you if you can swing them.
Thanks! One question - how long would it take to recover from one of those hikes? I was thinking of doing San G today to have an idea of what I'm getting myself into, but decided against it since I thought that my legs would be too trashed to tackle Whitney less than a week later.
